# The sign for "questioned equal to"

I want to write in TeX this sign:

# ≟

(Put in headings for bigger size). What's the syntax?

• \stackrel{?}{=} Oct 7, 2014 at 21:33
• What @PrzemysławScherwentke said. Or \questeq (or use the unicode character directly) with \usepackage{unicode-math}. Oct 7, 2014 at 21:36
• @PrzemysławScherwentke:I came across this one but it seems to not render with MathJax. When trying to put it inside two \$s it doesn't come out.
– E Be
Oct 7, 2014 at 21:37
• What MathJax may or may not do has nothing to do with (La)TeX! Oct 7, 2014 at 21:39
• Note that \stackrel is unknown in plain TeX. The syntax in plain TeX is \buildrel ?\over =. You can try if this syntax is working in MathJax (I don't know). Oct 8, 2014 at 8:36

\stackrel{?}{=}